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Product Detailed Parameters
- Description：IC COMPARATOR 2 DIFF 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：General Purpose
- Number of Elements：2
- Output Type：Open-Collector, Rail-to-Rail
- Voltage - Supply, Single/Dual (±)：2V ~ 36V, ±1V ~ 18V
- Voltage - Input Offset (Max)：2mV @ 5V
- Current - Input Bias (Max)：0.25µA @ 5V
- Current - Output (Typ)：20mA
- Current - Quiescent (Max)：2.5mA
- CMRR, PSRR (Typ)：-
- Propagation Delay (Max)：-
- Hysteresis：-
- Operating Temperature：-40°C ~ 125°C
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Mounting Type：Surface Mount
- Supplier Device Package：8-SOIC
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The LM2903AVQDRG4Q1 is an automotive-grade, dual differential voltage comparator manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 32 V and features open collector outputs with a typical response time of 1.3 µs. The device draws between 1 mA and 2.5 mA in quiescent current, maintains an input offset voltage of 4 mV, and supports an operating temperature range from -40°C to +125°C. It is housed in an SOIC-8 surface-mount package and complies with AEC-Q100 standards for automotive applications.
Feature Summary
- Dual-channel differential voltage comparison capability designed for single-supply operation
- Open-collector output architecture enabling flexible interfacing with various logic families
- Automotive qualification ensuring reliability under extended temperature conditions
Applications
- Automotive sensor signal conditioning
- Voltage level detection circuits
- Over-voltage and under-voltage protection systems
Procurement Notes
Verify the specific suffix G4 indicates a lead-free or packaging variant change without altering electrical function. Confirm the SOIC-8 package dimensions match PCB footprint requirements. Ensure the AEC-Q100 grade aligns with target automotive reliability standards. Cross-reference the datasheet revision date to confirm parameter consistency.
Selection Notes
Select this component when dual comparators are required in a compact SOIC-8 form factor. The wide supply voltage range suits diverse automotive power environments. The open-drain output allows wired-OR configurations. Verify thermal performance meets system constraints at maximum ambient temperatures.
Part Context
This part belongs to the LM2903-Q1 family of dual comparators. It shares functional similarities with the LM2903AVQDRQ1 but differs in the G4 suffix, which typically denotes a specific manufacturing or packaging update. It serves as a robust alternative to general-purpose comparators in high-reliability automotive designs.
Replacement Considerations
LM2903AVQDRQ1 is a direct functional equivalent within the same family. LM2903AVQPWRG4Q1 offers identical electrical specifications in a TSSOP-8 package.
